Typographic Grids, Golden Sections, Fibonacci series or Rule of Thirds. Thats not all, Slammer also has Rulers, Crosshairs, Magnifier, Measurements & Screenshots. Slammer is a natty little tool that can be used to create harmonious grids for many design applications.

The Snow Leopard, Mac only, app has been developed by Indian-based, one-man-band, Ringce.